Interdiction Pillar by momnop
Interdiction Pillar is a mod which adds many types of pillars which function similarly to EE2's Interdiction Torch.
Rollercoaster Mod by roboyobo, modmuss50
Adding the ability to create roller coaster tracks into minecraft!
Halocraft v0.6.3 by KILLER CHIEF
Halocraft v0.6.3 for Minecraft 1.6.4. [Now Completely Multiplayer Compatible!] This mod adds the Halo Guns/Grenades (some of them), the Mongoose, Mobs, another Dimension, and many Items and Blocks. Read the ReadMe for Microsoft's Game Content Usage Rules.